Incorrect block size on usb drive for mac fix

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SMARTReporter appears to be a rather 'quirky' utility. Perhaps Disk Warrior's 'Bad Block' is referring to something else? (I couldn't guess what that might be though). This is the number of bad sector's which the drive has remapped. registers for your drive with a tool like SMARTReporter, you should see an entry with ID number 05 and title 'Reallocated Sectors Count'. I don't know when it started but some time back the ability to remap a bad sector was merged into the firmware of the hard drive. I doubt you will find any software tools to 'fix' bad blocks, at least for recent hardware.

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What type of a Mac and what type of hard drive are you having problems with?

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I don't know of any tool that will do a surface scan and fix the bad blocks too.